<template>
	<view v-if="goods_info.goods_name" class="goods-detail-container">
		<!-- //轮播图 -->
		<swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" circular="true">
			<swiper-item v-for="(item, i) in goods_info.pics" :key="i">
				<image :src="item.pics_big" @click="preview(i)"></image>
			</swiper-item>
			
		</swiper>
		
		<!-- 商品信息区域 -->
		<view class="goods-info-box">
			<!-- 商品价格 -->
			<view class="price">￥{{goods_info.goods_price}}</view>
			
			<!-- 商品主体 -->
			<view class="goods-info-body">
				<!-- 商品名称 -->
				<view class="goods-name">{{goods_info.goods_name}}</view>
				<!-- 收藏 -->
				<view class="favi">
					<uni-icons type="star" size="18" color="gray"></uni-icons>
					<text>收藏</text>
				</view>
			</view>
			
			<!-- 运费 -->
			<view class="yf">快递：免运费</view>
		</view>
		
		<!-- 富文本组件 -->
		<rich-text :nodes="goods_info.goods_introduce"></rich-text>
		
		
		<!-- 商品导航区域 -->
		<view class="goods-nav">
			<uni-goods-nav :fill="true" :options="options" :buttonGroup="buttonGroup" @click="onClick" @buttonClick="buttonClick"></uni-goods-nav>
		</view>
	</view>
</template>

<script>
	import {mapState , mapMutations, mapGetters} from "vuex"
	
	export default {
		computed:{
			...mapState('m_cart',[]),
			...mapGetters('m_cart', ['total'])
		},
		
		watch :{
			// total (newVal) {
			// 	const findResult = this.options.find(x => x.text ==='购物车')
			// 	if(findResult){
			// 		findResult.info = newVal
			// 	}
			// }
			total:{
				handler(newVal){
					const findResult = this.options.find(x => x.text ==='购物车')
						if(findResult){
							findResult.info = newVal
						}
				},
				// 加载完毕后立即调用
				immediate:true
			}
			
			
		},
		
		data() {
			return {
				// 商品对象详情
				goods_info:{},
				options:[
					{
						icon:'shop',
						text:"店铺"
					},
					{
						icon:'cart',
						text:"购物车",
						info: 0
					}],
				buttonGroup:[
					{
						text : "加入购物车",
						backgroundColor:'#ff0000',
						color:'#fff'
					},
					{
						text : "立即购买",
						backgroundColor:'#ffa200',
						color:'#fff'
					}
				]
				
			}
		},
		onLoad(options) {
			const goods_id = options.goods_id
			this.getGoodsDetail(goods_id)
		},
		
		methods: {
			...mapMutations('m_cart', ['addToCart']),
			async getGoodsDetail(goods_id){
				const {data : res} = await uni.$http.get('/api/public/v1/goods/detail' , {goods_id})
				if(res.meta.status !== 200) return uni.$showMsg()
				
				// 解决图片底部空白间隙
				res.message.goods_introduce = res.message.goods_introduce.replace(/<img /g,'<img style="display:block"').replace(/webp/g,'jpg')
				
				this.goods_info = res.message
			},
			//点击图片进行大图预览
			preview(i){
				uni.previewImage({
					current:i,
					//获取所有图片的地址
					urls:this.goods_info.pics.map(x =>x.pics_big)
				})
			},
			//
			onClick(e){
				if(e.content.text === "购物车"){
					uni.switchTab({
						url:"/pages/cart/cart"
					})
				}
			},
			//
			buttonClick(e){
				if(e.content.text === '加入购物车'){
					// 组织商品的信息对象
					const goods = {
						goods_id : this.goods_info.goods_id,//商品id
						goods_name : this.goods_info.goods_name,//名称
						goods_price : this.goods_info.goods_price,//价格
						goods_count : 1,//数量
						goods_small_logo : this.goods_info.goods_small_logo,//图片
						goods_state : true ,//选中状态
					}
					// 调用addToCart方法
					this.addToCart(goods)
				}
			}
		}
	}
</script>

<style lang="scss">

swiper{
	height: 750rpx;
	
	image{
		width: 100%;
		height: 100%;
	}
}

.goods-info-box{
	padding: 10px;
	padding-right: 0;
	
	.price{
		font-size: 18px;
		color: #87ceeb;
		
	}
	.goods-info-body{
		display: flex;
		justify-content: space-between;
		
		.goods-name{
			font-size: 13px;
			margin-right: 10px;
			
		}
		.favi{
			width: 120px;
			display: flex;
			font-size: 12px;
			flex-direction: column;
			align-items: center;
			justify-content: center;
			border-left: 1px solid #efefef;
			color: gray;
		}
	}
	.yf{
		font-size: 12px;
		color: gray;
		margin: 10px 0;
	}
}

.goods-nav{
	position: fixed;
	bottom: 0;
	left: 0;
	width: 100%;
}

.goods-detail-container{
	padding-bottom: 50px;
}
</style>
